Word Study
catsup
CIDE DICTIONARY
catsup, n. [Probably of East Indian origin, because it was originally a kind of East Indian pickles. Cf. also Malay k fish sauce. MW10 .].
A pureed table sauce made predominantly from tomatoes, flavored with onions, sugar, salt and spices; called also tomato ketchup . The term is also applied to pureed sauces containing mushrooms, walnuts, etc., being called in such cases mushroom ketchup , walnut ketchup , etc. [1913 Webster]
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